Error: '500.19 internal server error' When Initially Starting Web Administration Console

Related KB Article

Applies To:

Windows Server 2012 R2

For Windows Server 2008 R2 see below

Symptom:

When initially starting the Web Administration Console, the server returns a 500.19 internal server error.

Cause:

This is normally caused by not having ASP 4.5 installed

Resolution:

Run the Add Roles and Features Wizard and install the ASP.NET 4.5 role as highlighed in the screenshot below.

After installation restart IIS.

Note:

We have seen a similar issue to this however the 500.19 Error page contains a blank config section. If this is the case it can be resolved by reinstalling the URL Rewrite Module. 

 

 

Windows Server 2008 R2

Cause:

This is caused by installing .NET before installing IIS.  IIS hasn't registered .NET because of the order of installation.

 

Resolution:

Run C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i